What class of diesel engines recently became regulated by the EPA (Environmental Protection Agency)?

A. All light duty diesel engines with less than 8 liters displacement.
B. Light duty diesel engines used only as work vehicles.
C. The current lineup of Detroit's pickup truck work diesels.
D. Off-highway light duty diesels.


Answer: D

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Water pumps ________

A) Are driven by the engine crankshaft or camshaft B) Use engine oil as a lubricant and coolant C) Only work at idle and low speeds and are disengaged at higher speeds D) Disengage during freezing weather to prevent radiator failure

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What is the maximum safe storage temperature for refrigerant cylinders?

A) 100°F B) 150°F C) 175°F D) 125°F

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Use Data Sheet 5 and 7.Mixed number Example: 2-1/3Put a dash between the whole number and the fraction.Simple Fraction Example: 2/31" threaded pipe is divided into three equal segments.c-c = 51 inches long1" threaded, 90° ell1" threaded, teeFind the end-to-end measure of pipe B.

Fill in the blank(s) with the appropriate word(s).

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The positive temperature coefficient (PTC) is a __________, or variable resistance device, whose resistance __________ as the sensed temperature increases. When cool, the resistance of the device is very __________. When cool, both the start and run windings of the motor are in the __________ electric circuit and __________ voltage is being supplied to the start winding.

What will be an ideal response?

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